نتایج جستجو برای: flag leaf area

تعداد نتایج: 664360  

ارزانـی, احمد, حبیبی, فرشاد , رخزادی , اسعد, سید طباطبایی, بدرالدین ابراهیم, عرب بیگـی, محبوبه , مجیـدی, محمد مهدی,

Aegilops cylindrica species (CCDD, 2n = 4x = 28) is one of the wild relatives of wheat and hence known as a valuable source of genes related to biotic and abiotic stress tolerance. In this study genetic variation of 66 Aegilops cylindrica genotypes collected from west and northwestern of Iran was evaluated using quantitative and qualitative morphological traits. The results indicated that glume...

ژورنال: علوم آب و خاک 2008
بائوم, مایکل , محمدی, محتشم ,

Improving the drought tolerance of barley varieties through the integrated efforts of plant biotechnology and conventional breeding is an important objective in barley breeding. One hundred and fifty eight doubled haploid lines of barley were mapped with 50 SSR and 93 AFLP markers. Agronomic traits such as early growth vigor, plant height, peduncle length, extrude of spike from flag leaf, spike...

لک زاده, ایرج, نادری, احمد, کاظمی, هادی ,

In order to study of the grain yield and its components in spring wheat genotypes affected by resources limitation under optimum condition, an experiment was conducted using split plot experiment in RCBD design with three replications in Agricultural and Natural Resources Research Center of Khouzestan-Iran in 2010-2011 cropping season. In this study, main plot were consists of six wheat spring ...

Journal: :PloS one 2015
Cheng Chang Jie Lu Hai-Ping Zhang Chuan-Xi Ma Genlou Sun

As the main pigment in photosynthesis, chlorophyll significantly affects grain filling and grain weight of crop. Cytokinin (CTK) can effectively increase chlorophyll content and chloroplast stability, but it is irreversibly inactivated by cytokinin oxidase (CKX). In this study, therefore, twenty-four pairs of primers were designed to identify variations of wheat CKX (Tackx) genes associated wit...

Journal: :Journal of economic entomology 2002
Matthew E O'Neal Douglas A Landis Rufus Isaacs

We report a protocol using a common desk-top scanner and public domain software for measuring existing leaf area and leaf area removed as a result of herbivory. We compared the accuracy and precision of this method to that of a standard leaf area meter. Both methods were used to measure metal disks of a known area, the area of soybean (Glycine max L.) leaves, and the area removed by simulating ...

Journal: :دانش علف های هرز ایران 0
مجید آقا علیخانی دانشگاه تربیت مدرس فائزه زعفریان کارشناسی ارشد اسکندر زند محقق حمید رحیمیان مشهدی استاد دانشگاه محمد رضوانی دکتری

in order to determine the role of plant leaf area in radiation distribution within the canopy and a better understanding of how crops and weeds intercept light a study of the complexity of plants is necessary. the  effect of intercropping on leaf area distribution and dry matter accumulation in corn, soybean and weeds canopy was studied in a  field experiment at a research field of tehran unive...

Journal: :international journal of advanced biological and biomedical research 2014
parviz rahbarian ali salehi sardoei

an important factor in the growth medium of plants and chemical plants. native substrates can be used to improve plant performance. to evaluate the effect of growth medium on the herb f. benjamina experimental design was completely randomized with eight treatments and four replications were carried out in the research greenhouse of islamic azad university of jiroft. f. benjamina  plants from ve...

Journal: :Journal of Bioscience and Agriculture Research 2015

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